This will never make it into the issues forum and I fear will be very difficult to fix.
It’s too hard to reproduce from one DAW to the next, one project to the next and even one session to the next.
I’ll just say this:
For years, Cubase and various plugins from various developers, continue to have problems with blank GUIs when projects get big or even slightly large.
By blank GUI I mean either not showing any GUI (not opening), not showing the VST in the instrument slot, or opening but showing white or blank areas of the UI.
It never happens in a blank project.
It always happens without warning.
I’m not talking about crashes, freezes, lockups or anything that generates an error dialog.
It always allows the user to continue working. If there are any internal failures, errors or crashes, they’re completely silent.
It almost always allows some, but not all, plugins to open their GUIs and therefore makes it seem like it’s the “offending” GUI’s fault. Sometimes it is the plugin’s fault, sometimes it’s not.
It never happens with stock plugins.
It seems to happen with VST2 more than VST3.
It’s always fixable by going on a track and plugin deleting rampage, which one can only assume removes some kind of resource-sensitive issue that blocks the GUI.
It’s happened to me across many different computer builds, versions of Windows, video cards and drivers.
It’s maddening and we need to get this figured out once and for all in 2015.
I’m going to start documenting, here on this thread, every time it happens.
Please join in and let’s see if you can find some commonalities. Be sure to list your system specs (if not in your sig.) and as much detail as you can.